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NTSB finding · Aircraft › Aircraft structures › Wing structure

All 43 cases35 in the probable cause
Cases
43
In the probable cause
35 (81%)
Fatal cases
33
NTSB code
01035711

NTSB has coded findings and defining events since 2008. Earlier cases used its older occurrence and cause codes, so they aren’t counted here.

When and where

In green, cases where NTSB made it part of the probable cause; in gray, a factor or other finding. Findings are coded with the final report, often a year or more after the event, so the latest years are incomplete.

Cases per year

2008In the probable causeFactor only2026

Where

Open the map
Query with SQL
duckdb -csv -c "SELECT year(c.\"eventDate\") AS year, count(DISTINCT f.case_mkey) AS cases,
    count(DISTINCT f.case_mkey) FILTER (WHERE f.\"inProbableCause\") AS in_probable_cause
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = f.case_mkey
  WHERE starts_with(f.\"findingCode\", '01035711') AND c.\"eventDate\" >= DATE '2000-01-01'
  GROUP BY 1
  ORDER BY 1"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

In the same cases

Defining events
Aircraft models

Aircraft matched to the registry by N-number and date.

Other findings
Query with SQL
duckdb -csv -c "WITH matched AS (SELECT DISTINCT case_mkey, aircrafts_position FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' WHERE starts_with(\"findingCode\", '01035711'))
  SELECT * FROM (
  SELECT 'Defining event' AS kind, e.\"tier2Number\" AS code, max(e.\"eventTier2Name\") AS name, count(DISTINCT f.case_mkey) AS cases
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_events.parquet' e ON e.case_mkey = f.case_mkey AND e.aircrafts_position = f.aircrafts_position AND e.\"isDefiningEvent\"
  WHERE e.\"tier2Number\" <> ''
  GROUP BY ALL
  UNION ALL
  SELECT 'Aircraft model', a.aircraft_model_code, any_value(concat_ws(' ', m.manufacturer, m.model)), count(DISTINCT f.case_mkey)
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = f.case_mkey AND a.position = f.aircrafts_position
  LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m ON m.code = a.aircraft_model_code
  WHERE a.aircraft_model_code IS NOT NULL
  GROUP BY ALL
  UNION ALL
  SELECT 'Other finding', left(g.\"findingCode\", 8), max(g.\"tier4Name\"), count(DISTINCT g.case_mkey)
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' g
  WHERE g.case_mkey IN (SELECT case_mkey FROM matched) AND NOT starts_with(g.\"findingCode\", '01035711') AND g.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY ALL
  )
  QUALIFY row_number() OVER (PARTITION BY kind ORDER BY cases DESC) <= 10
  ORDER BY kind, cases DESC"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Newest cases · 43

NTSB CEN24FA179Accident · 2 fatalClass 3 · FieldFinal reportPiper PA46-500TP · Marianna, ARThe pilot’s exceedance of the airplane’s design limitations, which resulted in an in-flight breakup.May 13, 2024 · N241PM · Substantial damageNTSB ENG24LA012IncidentClass 3 · LimitedFinal reportBritish Aerospace BAE 146 Series 200A · Missoula, MTThe use of a new long term fire retardant with a chemical composition incompatible with the retardant previously in use for the integration-operational field evaluation without adequate testing and qualification.Mar 1, 2024 · N474NA · 2 aircraft · Minor damageNTSB ANC24FA008Accident · 2 fatalClass 3 · FieldFinal reportPiper PA-18-150 · Anchor Point, AKAn impact to the left wing, at an undetermined time, for reasons that could not be determined, which partially separated the left wing and rendered the airplane uncontrollable.Dec 8, 2023 · N1880P · DestroyedNTSB WPR23FA351Accident · 1 fatalClass 3 · FieldFinal reportGolden Circle T Bird · Arlington, WAA failure of the forward left wing spar due to an improper repair, which resulted in an inflight separation of the left wing. Contributing to the accident was improper maintenance by splicing the wing spar.Sep 22, 2023 · UNREG · Substantial damageNTSB ERA23FA340Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-28-161 · Fort Pierce, FLThe left seat instructor’s intentional maneuvering of the airplane in an aerobatic steep turn for which it was not approved, which resulted in an exceedance of the structural limitations of the airplane and an inflight breakup.Aug 17, 2023 · N9855S · DestroyedNTSB WPR23LA255Accident · Serious injuriesClass 3 · LimitedFinal reportAvia Stroitel AC-5M · North Plains, ORThe pilot’s failure to maintain control of the motor glider, which resulted in an inflight overstress separation of the right wing during a high-speed, high-wing-load spiral dive recovery. Contributing to the accident was the inadequately manufactured wing…Jul 5, 2023 · N40233 · Substantial damageNTSB ERA23FA209Accident · 2 fatalClass 3 · FieldFinal reportCessna 177B · Watkinsville, GAThe pilot’s spatial disorientation and subsequent loss of airplane control, which resulted in an in-flight overload separation of the right wing during the uncontrolled descent.Apr 26, 2023 · N123DS · DestroyedNTSB ERA22LA084Accident · No injuriesClass 4 · LimitedFinal reportCessna 172S · Midland, VACollision with a bird in flight, which resulted in damage to the right-wing leading-edge spar.Dec 3, 2021 · N2100S · Substantial damageNTSB CEN21FA360Accident · 3 fatalClass 3 · FieldFinal reportMooney M20M · Victoria, MNThe pilot’s loss of airplane control due to spatial disorientation during final approach, which led to a spiral dive that overstressed the airplane and resulted in an in-flight breakup.Aug 7, 2021 · N9156Z · DestroyedNTSB WPR21FA266Accident · 2 fatalClass 3 · FieldFinal reportBeech C90 · Wikieup, AZThe failure and separation of the left wing’s outboard section due to a fatigue crack in the lower spar cap. Contributing to the accident was the operator’s decision to repair the wing spar instead of replacing it as recommended by the aircraft manufacturer.…Jul 10, 2021 · N3688P · Destroyed
See all 43 cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"mKey\" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '01035711'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.